void setWindowIcon(SDL_Window &window) {
#if defined(WIN32)
// Try to set the windows icon from the ICO in the resources.
// If that fails, use the static icon.
if (!setWindowsIcon(window))
setStaticIcon(window);
#elif defined(MACOSX)
// Do nothing on Mac OS X. The external icon is pulled in by default already.
#else
/* TODO: We should try setting _NET_WM_ICON on GNU/Linux to get support for scalable
* icons there as well. Additionally, XSetWMHints() should be used for
* window manager that do not support _NET_WM_ICON (like e16).
*/
setStaticIcon(window);
#endif
}
bool
GLAppSDL::initialize(int argc, char* argv[])
{
if (!AppBaseSDL::initialize(argc, argv))
return false;
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, profile);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, majorVersion);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, minorVersion);
#if defined(DEBUG)
SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG);
#endif
if (profile == SDL_GL_CONTEXT_PROFILE_ES) {
#if 0
int numVideoDrivers = SDL_GetNumVideoDrivers();
int i;
const char** drivers;
drivers = (const char**)SDL_malloc(sizeof(const char*) * numVideoDrivers);
for (i = 0; i < numVideoDrivers; i++) {
drivers[i] = SDL_GetVideoDriver(i);
}
#endif
// Only the indicated platforms pay attention to these hints
// but they could be set on any platform.
#if __WINDOWS__ || __LINUX__
SDL_SetHint(SDL_HINT_OPENGL_ES_DRIVER, "1");
#endif
#if __WINDOWS__
// If using ANGLE copied from Chrome should set to "d3dcompiler_46.dll"
// Should set value via compiler -D definition from gyp file.
SDL_SetHint(SDL_HINT_VIDEO_WIN_D3DCOMPILER, "none");
#endif
}
#if __MACOSX__
SDL_SetHint(SDL_HINT_MAC_CTRL_CLICK_EMULATE_RIGHT_CLICK, "1");
#endif
pswMainWindow = SDL_CreateWindow(
szName,
SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED,
w_width, w_height,
SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE
);
if (pswMainWindow == NULL) {
(void)SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, szName, SDL_GetError(), NULL);
return false;
}
#if __WINDOWS__
// Set the applications own icon in place of the Windows default set by SDL.
// Needs to be done here to avoid change being visible.
setWindowsIcon(pswMainWindow);
#endif
sgcGLContext = SDL_GL_CreateContext(pswMainWindow);
// Work around bug in SDL. It returns a 2.x context when 3.x is requested.
// It does though internally record an error.
const char* error = SDL_GetError();
if (sgcGLContext == NULL
|| (error[0] != '\0'
&& majorVersion >= 3
&& (profile == SDL_GL_CONTEXT_PROFILE_CORE
|| profile == SDL_GL_CONTEXT_PROFILE_COMPATIBILITY))
) {
(void)SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, szName, SDL_GetError(), NULL);
return false;
}
#if __WINDOWS__
if (profile != SDL_GL_CONTEXT_PROFILE_ES)
{
// No choice but to use GLEW for GL on Windows; there is no .lib with static
// bindings. For ES we use one of the hardware vendor SDKs all of which have
// static bindings.
// TODO: Figure out how to support {GLX,WGL}_EXT_create_context_es2_profile
// were there are no static bindings. Need a GLEW equivalent for ES and
// different compile options. Perhaps can borrow function loading stuff
// from SDL's testgles2.c.
// So one build of this library can be linked in to applications using GLEW and
// applications not using GLEW, do not call any GLEW functions directly.
// Call via queried function pointers.
void* glewdll = SDL_LoadObject("glew32.dll");
if (glewdll == NULL) {
std::string sName(szName);
(void)SDL_ShowSimpleMessageBox(
SDL_MESSAGEBOX_ERROR,
szName,
SDL_GetError(),
NULL);
return false;
}
typedef GLenum(GLEWAPIENTRY PFNGLEWINIT)(void);
typedef const GLubyte * GLEWAPIENTRY PFNGLEWGETERRORSTRING(GLenum error);
PFNGLEWINIT* pGlewInit;
PFNGLEWGETERRORSTRING* pGlewGetErrorString;
bool error = true;
#define STR(s) #s
#if defined(_M_IX86)
/* Win32 GLEW uses __stdcall. */
#define DNAMESTR(x,n) STR(_##x##@##n)
#else
/* x64 uses __cdecl. */
#define DNAMESTR(x,n) STR(x)
#endif
pGlewInit = (PFNGLEWINIT*)SDL_LoadFunction(glewdll, DNAMESTR(glewInit,0));
if (pGlewInit != NULL) {
pGlewGetErrorString = (PFNGLEWGETERRORSTRING*)SDL_LoadFunction(
glewdll, DNAMESTR(glewGetErrorString,4));
if (pGlewGetErrorString != NULL) {
error = false;
}
}
if (error) {
std::string sName(szName);
(void)SDL_ShowSimpleMessageBox(
SDL_MESSAGEBOX_ERROR,
szName,
SDL_GetError(),
NULL);
return false;
}
int iResult = pGlewInit();
if (iResult != GLEW_OK) {
std::string sName(szName);
(void)SDL_ShowSimpleMessageBox(
SDL_MESSAGEBOX_ERROR,
szName,
(const char*)pGlewGetErrorString(iResult),
NULL);
return false;
}
}
